Collins, Holden & Setchell, Phycoth. Bor.-Amer.
Collins, F.S.; Holden, I.; Setchell, W.A. [1-2300]

Brown University - Algae
Catalog #: ABRU00003367
I. Holden s.n. 12 December 1897
Schizothrix lacustris A.Braun ex Gomont
United States, Connecticut, Fresh Pond, Stratford, CT

Yale University Herbarium
Catalog #: YU.091795
Isaac Holden s.n. 12 December 1897
Schizothrix lacustris A.Braun ex Gomont
United States, Connecticut, Fairfield, Stratford; Fresh Pond, Stratford, CT

Michigan State University Algae
Catalog #: MSC0184617
Isaac Holden #s.n. 12 December 1897
Schizothrix lacustris A.Braun ex Gomont
United States, Connecticut, Fairfield, Fresh Pond, Stratford

Miami University - Algae
Catalog #: 000187315
Isaac Holden #s.n. 12 December 1897
Schizothrix lacustris A.Braun ex Gomont
United States, Connecticut, Fairfield, Fresh Pond, Stratford